What does leaker mean?
A leaker is primarily a person who makes secret or confidential information public. The word commonly appears in news reporting and political discussion, where it may refer to someone who disclosed classified documents, private correspondence, or other material without authorization. Its implication can vary with context: it may simply identify a source, or it may suggest an irresponsible breach of trust. In contrast, “whistleblower” often emphasizes someone who exposes misconduct for legitimate reasons. A secondary, less frequent meaning refers to a person or object through which a liquid or gas escapes. The term derives from the older word “leak,” meaning to let fluid escape or to disclose confidential information. In modern usage, “leaker” is especially associated with investigations into the source of leaked information and with efforts to identify or hold the person responsible.
A person who discloses secret, confidential, or otherwise restricted information.
"The investigation focused on identifying the leaker behind the anonymous disclosure."
Often used in journalism and political reporting; the sense can imply unauthorized disclosure.
A person or object through which liquid, gas, or another substance escapes.
"The technician repaired the pipe leaker in the basement."
The plural is formed by adding -s to the singular noun.
"Several leakers shared confidential information with the committee."
A leaker reveals the secret; a whistleblower exposes misconduct or wrongdoing that the public has a right to know about.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of leaker
“Leaker” was formed from the older English verb “leak,” which developed in Middle English from Germanic roots associated with allowing liquid or gas to escape. The verb also came to mean allowing information to become known, especially when such disclosure was unauthorized. The agent noun “leaker” therefore originally referred to a thing that could leak and later became especially common for a person who discloses secret information.
How leaker is actually used
In contemporary reporting, “leaker” often suggests an unauthorized disclosure and may carry a slightly negative or sensational tone. “Whistleblower” is more specific when the person exposes wrongdoing, especially in an official or workplace context.
Easily confused with leaker
A leaker is the person who discloses information, while a leak is the information itself or the act of disclosing it.